Answer:
(5, 15)
Explanation:
To solve the system of equations:
Y = 3x
Y = 9x - 30
We can set the two equations equal to each other and solve for x:
3x = 9x - 30
Subtracting 3x from both sides, we have:
0 = 6x - 30
Adding 30 to both sides, we get:
30 = 6x
Dividing both sides by 6, we find:
5 = x
Now that we have the value of x, we can substitute it back into one of the original equations to find the value of y:
Y = 3x
Substituting x = 5, we have:
Y = 3 * 5
Y = 15